mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2026-04-27 04:18:42 +00:00
Jingyue Wu
81fb217d91
Summary: With this patch, NVPTXLowerKernelArgs converts a kernel pointer argument to a pointer in the global address space. This change, along with NVPTXFavorNonGenericAddrSpaces, allows the NVPTX backend to emit ld.global.* and st.global.* for accessing kernel pointer arguments. Minor changes: 1. refactor: extract function convertToPointerInAddrSpace 2. fix a bug in the test case in bug21465.ll Test Plan: lower-kernel-ptr-arg.ll Reviewers: eliben, meheff, jholewinski Reviewed By: jholewinski Subscribers: wengxt, jholewinski, llvm-commits Differential Revision: http://reviews.llvm.org/D10154 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239082 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
755 B
LLVM
21 lines
755 B
LLVM
; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
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target triple = "nvptx64-unknown-unknown"
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; Verify that both %input and %output are converted to global pointers and then
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; addrspacecast'ed back to the original type.
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define void @kernel(float* %input, float* %output) {
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; CHECK-LABEL: .visible .entry kernel(
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; CHECK: cvta.to.global.u64
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; CHECK: cvta.to.global.u64
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%1 = load float, float* %input, align 4
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; CHECK: ld.global.f32
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store float %1, float* %output, align 4
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; CHECK: st.global.f32
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ret void
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}
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!nvvm.annotations = !{!0}
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!0 = !{void (float*, float*)* @kernel, !"kernel", i32 1}
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